If you are talking about a subject you know well, as I've just advised, prepared, preparing the speech itself should not be too difficult.

如果你正在谈论一个你很熟悉的话题，就像我刚才建议的，做好准备；准备演讲本身应该不是太难。

youdao

Just know, that it is enough sometimes to know that it is difficult.

有时候知道难就够了。

youdao

But missile attacks on ships are rare, so it is difficult to know just how safe a ship really is-especially if an attacker launches a dozen or so missiles at once.

但舰船受到导弹攻击的案例非常少，因此很难判断一条战舰躲过导弹攻击的劫数有多大，特别是在攻击者一次发射十多枚导弹的情况下。

youdao

But do you know just how difficult it is to find those big shoes?

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They only know how difficult their own job is, but just by exposing them to other jobs, a leader can help to rectify this.

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It's just a wonderful place to gather and have a cup of coffee and talk about things that are difficult to talk about with people who just don't know what you're going through.

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